Character Relationship Map: Rainy Dog

Characters

• Yuji (played by Show Aikawa) — protagonist

  Former yakuza hitman working as a contract killer in Taipei; struggles to protect his mute son and lover.

• Whorehouse Proprietor (played by Blackie Ko Sau-Leung) — supporting

  Runs the whorehouse where Lily works and controls her as a prostitute.

• Ah Chen (played by Jianqin He) — supporting

  Yuji's mute son, abandoned by his mother, who follows his father and witnesses violence.

• Sandy (played by Doze Niu Cheng-Tse) — supporting

  Trans woman friend of Lily who shelters the fugitives but betrays them for reward money.

• Lee (played by Chang Shih) — supporting

  Yuji's new yakuza boss who betrays him to the lawyer for reward.

Canonical Relationships

Family, romantic, and professional connections based on plot evidence.

• Whorehouse Proprietor → Yuji (Power Establishment Owner) — The proprietor controls the criminal-commercial setting Yuji enters through his relationship with the prostitute.

  Yuji follows the prostitute to the whorehouse where she works, and the proprietor is identified as the person who controls that establishment.

• Yuji → Ah Chen (Family Father) — Yuji is Ah Chen's estranged but increasingly protective father.

  The plot identifies Ah Chen as Yuji's son. Ah Chen follows Yuji after being left at his home.

• Lee → Yuji (Professional Employer) — Lee employs Yuji for contract killings and controls his access to escape resources.

  Yuji finds work with Lee as a pay-per-hit assassin and later calls Lee to request a passport.

Story Dynamics

Alliances, conflicts, and narrative interactions that evolve throughout the story.

• Sandy → Ah Chen (Social Host) — Sandy briefly offers Ah Chen a place of safety.

  Sandy's apartment shelters the group, including Ah Chen, before the betrayal is discovered.

• Sandy → Yuji (Social Host) — Sandy temporarily provides refuge to Yuji and his companions.

  Sandy's apartment shelters Yuji, the prostitute, and Ah Chen after they flee their previous location.

Story Analysis

A contract killer briefly forms a family-like bond before betrayal and violence leave his mute son facing an inheritance of revenge.

Plot Progression

1. A Killer Becomes A Father — Yuji loses his yakuza position and begins contract work under Lee. His routine changes when Ah Chen is left at his home and follows him into violence.
2. A Fragile Household — Yuji's connection with the prostitute develops while Ah Chen remains near the dangerous adult world. A revenge request begins closing in on Yuji.
3. Beachside Escape — The trio flees to a beach after a contract killing creates new danger. Ah Chen receives a small moment of care while the lawyer publicizes a reward.
4. Betrayal At The Hideout — Yuji asks Lee for a passport, but Lee contacts the lawyer instead. Sandy's apartment becomes another trap when the group discovers her betrayal.
5. A Fatherless Reckoning — Yuji separates from Ah Chen to pursue revenge, but the lawyer captures the group and the prostitute is killed. Yuji dies after a brief apparent victory, leaving Ah Chen with the lawyer's threat.